Spring shackle-link



(No Model.)

J. D. ROBERTSON.

SPRING SHAGKLE LINK.

Patented Dec. 18, 1883.

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NHED STATES PATENT OFFIC JAMES ROBERTSON, OF SALISBURY, MASSACHUSETTS.

SPRING SHACKLE-LINK.

SPECIFICATION forming part of Letters Patent No. 290,271, dated December 18, 1883. Application filedSeptember 1', 1883. (No model.)

To ail whom it may concern Be it known that I, JAMES D. ROBERTSON, of Salisbury, in the county of Essex and State of Massachusetts, have invented a new and useful Improvement in Spring Shackle-Links, which will, in connection with the accompanying drawings, be hereinafter fully described, and specifically defined in the appended claims.

This invention relates to the links by means of which the ends of vehicle-springs are connected 'with the shackles; and it consists in the construction and combination of the divers. devices embodied therein, as hereinafter more particularly and fully set forth and claimed.

In the accompanying drawings, Figure 1 is a plan view of my improved link. Fig. 2 is a vertical section taken through the link, as on lineA A, Fig. 1. Fig. 3 is a horizontal section taken through the link, as on line B B, Fig. 2. Fig. iis a transverse vertical section taken on line C 0, Fig. 1. Fig. 5 is asection like Fig.4, but taken on lines D D, Fig. 1. Fig. 6 is a view like Fig. 4., but showing a modification of the packing interposed be tween the halves of the bar.

In said views, a, a represent the sides oi the link, which may be formed in any usual manner. Upon the sides at each end are formed the usual spring-supporting and shackel-engaging bars b b, which, instead of being either formed continuous from side to side or else being transversely divided, as heretofore, are formed divided, with a lap or splice joint by means of the longitudinally-divided por-' tions 0 c, as shown. A central and larger bar, d, is formed upon sides a at their lineal center, and is lapped or spliced in the same manner as are bars b,- but such lap is longer than in the end bars, and is reversed relatively to the same-that is, as shown in Figs. 1, 4, 5, and 6, the lap of that part of barsb that is formed on a passes beneath that part of said bars which is formed on a, while the lap of that part of bar d which is formed on a is above that part of said bar whichis formed on'a such reversal aiding in holding the two parts spring, I insert a thin sheet or packing, f, of

lead or other non-reverberating material between the laps of bar d, which packing may either cover the longitudinal faces of the lap, V

as in Fig. 4, or it may be arranged between both the longitudinal and transverse faces, as in Fig.6.

I do not broadly claim a link having the end bars, 5, formed in two parts, as I am aware that links having said bars divided in a transverse line have already been patented; nor do I claim, broadly, a link having a central bar, d, as I am aware that links having such bars formed to permanently unite sidesa, and with the end bars, b, inserted in holes in sides a, have been used; but

What I do claim is- 1. A shackle-link having the central bar,

d, and end bars, 1), formed as integral parts of sides a, substantially as specified.

2. A shackle-link formed in two parts and having the end bars divided by a splice or lapjoint, substantially as specified.

3. A shackle-link formed in two parts, having a central bar divided by a splice or lapjoint and secured together by a rivet in said bar, substantially as specified.

1. A shackle-link formed in two parts, and having the end and middle bars formed with a splice or lap-joint, and with such joint in the middle bar reversed relatively to that of the end bars, in the manner shown and described.

5. Ina divided shackle-link, a sheet or packing of lead or other non-reverberating material, arranged between the meeting faces of the two parts of the link, substantially as specified.

JAMES D. ROBERTSON.

Witnesses:

T. W. PORTER, EUGENE HUMPHREY. 

